my friends friend is selling his WRX and i helped him remove everything aftermarket put back to stock
well he let me have his OEM subwoofer
so i need a diagram and there are 8 wires can someone there what wire is for what
this is going into my bmw
thanks

 

Sorry I don't have the info, but-
Your friend should have given you the harness as well, it goes along with the sub. Although you wouldn't be plugging it into a Subaru HU you would still have the proper connector and wiring.
The sub uses speaker level inputs so you would need to tap the rear speaker lines in your car. Depending on how much power is going to those speakers it might work ok or it might not.

 

he had 2 oem subs and one harness

i started to take the sub apart
i think i can make it work

 

shouldn't this be in the aduio section?

 

i dont no im new here but i did get the oem subwoofer to work